3938813073 has 24 divisors (see below), whose sum is σ = 6134331840. Its totient is φ = 2421001440.

The previous prime is 3938813071. The next prime is 3938813083. The reversal of 3938813073 is 3703188393.

It is not a de Polignac number, because 3938813073 - 2¹ = 3938813071 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3938813071) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 80908 + ... + 120098.

It is an arithmetic number, because the mean of its divisors is an integer number (255597160).

Almost surely, 2^3938813073 is an apocalyptic number.

It is an amenable number.

3938813073 is a deficient number, since it is larger than the sum of its proper divisors (2195518767).

3938813073 is a wasteful number, since it uses less digits than its factorization.

3938813073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40069 (or 40066 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 45.

The square root of 3938813073 is about 62759.9639340241. The cubic root of 3938813073 is about 1579.2654109374.

The spelling of 3938813073 in words is "three billion, nine hundred thirty-eight million, eight hundred thirteen thousand, seventy-three".